<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<script>
    switch ('刘志纯') {
        case 123:
            alert(123);
            break;
        case 666:
            alert(666);
            break;
        default:
            alert('刘志纯');
    }
</script>
<body>

</body>
</html>